HK91 / G3 / HK51 Receivers / Uppers
Upgrade the core of your HK G3/91 or PTR 91. Choose from genuine HK receivers, high-quality US-made options, and custom receivers for specialized builds.
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On Sale
Receiver Shelf - Semi Auto - Billeted
Now: $16.95Was: $19.95Semi Auto Shelf for Receiver - Billeted HK Semi Auto Shelf milled from one solid billet to HK's factory specifications (no castings here). This is the needed receiver shelf that is welded to the receiver to allow the use of the clipped & pinned...HKP-01521Now: $16.95Was: $19.95 -
On Sale
HK Picatinny Rail For HK Receivers - 15 Slot
HKP HK Parts
Now: $53.95Was: $59.95HKP Picatinny Rail For HK Receivers - 15 Slot Mil-Spec all steel CNC'ed picatinny rail in the white, relief cut to fit flush and low profile on HK receivers. The most solid and consistent mounting platform made for mounting scopes and optics to HK builds...HKP-18241Now: $53.95Was: $59.95 -
On Sale
Picatinny Rail for HK Receivers - 13 Slot
HKP HK Parts
Now: $45.95Was: $52.95HKP Picatinny Rail For HK Receivers - 13 Slot Mil-Spec all steel CNC'ed picatinny rail in the white, relief cut to fit flush and low profile on HK receivers. The most solid and consistent mounting platform made for mounting scopes and optics to HK builds...HKP-18238Now: $45.95Was: $52.95 -
On Sale
HK MP5, G3, HK53 Semi Auto Shelf Weldment - Billeted
DTAC Dakota Tactical
Now: $29.95Was: $34.95DTAC Spec Billeted Semi Auto Shelf For C/P'ed Trigger Group -Dakota Tactical The needed receiver shelf that is welded to the magwell of the receiver to allow the use of clipped & pinned trigger housings. These are as made to DTAC's custom specs...HKP-18072Now: $29.95Was: $34.95 -
On Sale
HK91, G3, HK33, HK93 Bayonet Adapter - Complete - Turkish Contract
Other
Now: $33.95Was: $38.95Turkish Contract Complete Bayonet Adapter for HK91, HK G3, HK33, HK93 Complete Turkish contract 90 Series-style steel bayonet adapter supplied with the required mounting hardware. Designed for proper fit on HK33, HK93, HK91, and G3 pattern rifles...HKP-22517Now: $33.95Was: $38.95 -
HK91, G3 Magazine Release - Anti-Rattle - Surplus
H&K Heckler & Koch
$24.95Heckler and Koch Anti-Rattle Mag Release from Surplus for HK G3, HK91, PTR, HK33, HK53, HK93 Pulled from demilled German HK firearms. Once refinished this item can be made to look like new. For install on all HK Rifles caliber .223 and .308. This is the...HKP-17855$24.95 -
On Sale
HK33, HK93, HK51, HK91, G3 Paddle Magazine Release - Standard
H&K Heckler & Koch
Now: $7.95Was: $8.95New Heckler and Koch Paddle Magazine Release This item is a brand new HK German genuine part, not a used or surplus part. It's used for installation on all HK .223 and .308 rifles. Compatible With: HK91, G3 HK 51 HK33, HK93 PSG1, MSG90HKP-01851Now: $7.95Was: $8.95 -
Out Of Stock
HK Barrel Retaining Pin - 5.15mm
H&K Heckler & Koch
$14.95H&K Barrel Retaining Pin - 5.15mm This is the barrel pin used for installing a new or replacement barrel. HK suggests using a new factory barrel pin when installing or reinstalling an HK barrel in the trunnion. Each pin is slightly oversized for...HKP-01662$14.95 -
On Sale
HK91, G3, PTR Trunnion
RCM
Now: $58.95Was: $64.95RCM Trunnion For The HK91/G3 Series - US Made This part is machined from ordnance grade 9310 enhanced steel and heat treated to exact HK specifications. This item is the best USA-made trunnion on the market. Machined to spec and are to the custom ground...HKP-01289Now: $58.95Was: $64.95 -
On Sale
HK91, G3 Backplate and Recoil Rod Assembly Complete
H&K Heckler & Koch
Now: $44.95Was: $49.95HK German Backplate Assembly Complete: Excellent Refinished - German HK G3 backplate complete that has been refinished in black oxide. Great replacement for worn out or damaged backplates. Compatible With: G3 HK91 PTR 91 Custom clonesHKP-00355Now: $44.95Was: $49.95 -
On Sale
PTR Spec Tac Latch
Other
Now: $62.95Was: $69.95Tac Latch (latest Generation) PTR Spec - PTR .308 Firearms The new updated style of Tac latch is made specifically for the PTR 91 .308 receiver and will require very little modification to the firearm for installation. A major overhaul of the existing...HKP-17611Now: $62.95Was: $69.95 -
Out Of Stock
HK91, G3 Shell Deflector - Weld On
H&K Heckler & Koch
$18.95New HK German G3, 91, PTR91 Steel Case Deflector - Weld On This steel weld-on addition for the G3 military rifle was developed to help fellow soldiers from hitting each other with hot spent brass and deflect the brass forward of the shooter at...HKP-12747$18.95